Historical clue formulations

• Shakes, but not sundaes — 2025-04-26
• Quakes — 2024-02-04
• Great shakes — 2021-01-31
• Great shakes — 2020-03-27
• Bad vibrations — 2020-02-15
• Tremors — 2016-03-07
• They'll rock your world — 2014-08-15
• Tremors — 2014-04-27
• Earth movers? — 2013-08-14
• They're the fault of faults — 2009-03-14
• Quakes — 2005-02-02
• Earth-shaking experiences — 1994-03-05